The Tome of Rubicon tells of a titanic struggle between the Great Dwarf and the Great Destroyer, hinting at an apocalyptic time when this battle will once again be rejoined. The Dwarves believe that time is nigh. Hordes of creatures with hearts of flame and skin as black and as hard as obsidian have welled up from the Depths, pulling the Dwarves into a vicious war that threatens their very existence. While the face of the Great Destroyer has never been gazed upon by any mortal creature, the Dwarves do not doubt that these swarms of Destroyers are merely the spawn of the Great Destroyer, which will soon rise.

The Great Destroyer was the greatest foe and pure opposite of the Great Dwarf — "evil, malicious, and greedy to the core." When the Great Dwarf and Great Destroyer had battled, the Great Destroyer was defeated by its true name, and in turn powers, being taken from it. Supposedly, the true name of the Great Destroyer would be revealed when the two clashed once more. If the true name of the Great Destroyer was ever read, then the Great Destroyer would rise again and end the known world. However, the Great Destroyer appeared again in 1078 AE even without his name being read. It is the main antagonist in Guild Wars Eye of the North.